b',-2 T\C,K SK(1(WHi;nO 



ill must oiisos (alwavs?) no suoli si'i'uinlarv hristU-s ;il ;ill ua llic bristles ol liir ciiilitc ol llic 

 roxalc. Apart from those l)ristlos the procoxale and the coxah' uro quite without hristk's. 

 The basaU- tonus ou the inside a somewhat lobe-like projecting part, furnished in most 

 avses witli a sin>:le bristle; apart from this the joint has no l)ristles at all. 1'] n d u p o d i t e: 

 The tirst joint had in the species investigated by me from tour to six bristles on the anterior 

 edge and from two to four bristles at about the middle or somewhat distally of the 

 miiklle of the posterior edge; in addition there is a single bristle on the inside of this joint 

 sonunvluit distally of the middle or rather near the distal boundary. The end joint is armeil 

 with five or six distal bristles. 



Fifth limb: — This has no dimorphism or at any rate it is scarcely perceptible. -^ 

 Protopodite: The basale is furnished with traces of two endites. Epipodial 

 plat e: The luimber of the marginal bristles is almost quite constant within this whole group; 

 the following numbers were observed on all the species investigated by me: five bristles in the 

 proximal, five (four in only one species) in the middle and four in the distal group; in exceptional 

 cases, however, an increase or a decrease of one bristle may be observed in one or more specimens 

 in one or two of these groups. All these bristles are comparatively long, with long secondary 

 hairs right out to their points, except the proximal one in the proximal group, which is only 

 about as long as or somewhat shorter than half the length of the others, and has short, 

 tine hairs. Exopodite: This has always three joints. Its first and second joints are 

 rather elongated and of about the same length. First joint: This has a moderate number 

 of bristles ventrally; there is only one bristle dorsally on the joint and it is in most 

 cases very long; in addition there are laterally, at about or somewhat in front of the middle 

 of the joint, in most cases one, sometimes two, bristles. Second joint: This has only 

 three bristles, one of which is situated dorsally, at or somewhat in front of half the length 

 of the joint, the two others close to each other at the corresponding place on the ventral 

 side of the joint. 



Sixth limb: — This is with or without dimorphism. — Epipodial plate: 

 The number of marginal bristles seems to be almost quite constant within the whole of this 

 sub-family. The following numbers were observed by me on all the species of this group that 

 were investigated for tins treatise: seven bristles in the proximal group, five in the middle one 

 and five in the distal one. Just as in the case of this appendage on the preceding limb an increase 

 or decrease of one bristle in one or two of these three groups may, however, be observed on single 

 specimens. These bristles are of the same type and about the same length as those on the epi- 

 podial plate on the fifth limb; I ought perhaps to point out especially that, just as in the case 

 of this plate, so, too, on the sixth limb the proximal bristle in the proximal group has short hairs 

 and is relatively short, about as long or not quite as long as half the length of the other bristles. 

 Endopodite: This has only one or two bristles. Exopodite: The three proximal 

 joints are rather elongated and often of about the same length. The first joint has a moderate 

 number of bristles ventraUy, and in most cases one bristle dorso-distally. The second joint has 

 only one, rarely two bristles, situated ventrally, in most cases at about half way along 

 the joint. The third joint has in most cases two bristles, one of which is situated dorsally, 



